Black needs more 2-drops, so I wanted to design something aggressive that had some small level of strategy to it. A 3/2 for BB that can become a 2/2 flyer is definitely above the mana cost, so I wanted to attach another cost that didn't feel arbitrary. I've also been looking for more self-mill effects, and with Madness returning I thought it was a good time to get a head start on enablers for that as well. The reasoning behind why I chose that upkeep cost is that it forces the player to decide when the best time is to provide evasion. There could be sequences where you plan a turn ahead by discarding a land to used for the next turn.I see where you are going with this, but to me the card doesn't really feel cohesive. This feels like the type of card I will have to read every time it hits the battlefield, I don't really get why exiling a land is different from other cards. Not sure how to make this idea more streamlined though.
For me, I think a cleaner approach would be beefier above-the-curve stats, and you sacrifice it if you can't exile a card from your graveyard. That's a different design though. The more I talk though, the more I realize I'm just suggesting a variant on this card.
